Intermittent Check Engine Light Prob (STILL)

[kowalczyk86]

I just changed the O2 sensors. Did not fix the issue. No vac leaks that I can tell. IAC has been changed. Took apart MAF and cleaned it (wasn't even dirty). What else could this be? Code 11's when I run the scanner.

 

[Mustang5L5]

So when does the light come on? When does it go away?

What sort of scanner are you using to read codes. Does it have a cable that will reach into the cabin with the hood closed.

 

[2000xp8]

I used to have the intermittent check engine light way back, turned out to be the egr.
Cleaned all the carbon and soot out of it and it went away.

 

[kowalczyk86]

So when does the light come on? When does it go away?

What sort of scanner are you using to read codes. Does it have a cable that will reach into the cabin with the hood closed.

seems like light comes on when it is colder in the morning. It will come on for a couple second then off then repeat. Seems like when I accelerate it comes on. I used a scanner that puts the numbers on the led screen so no room for error. Nothing that will reach the cabin. Car runs and idles perfect.

 

[Mustang5L5]

Accelerate at WOT? Or part throttle?

 

[kowalczyk86]

Accelerate at WOT? Or part throttle?

Seems like any throttle. But not every time.